Charged-Pion cross sections and double-helicity asymmetries in polarized p+p collisions at √s = 200 GeV

B. A. Cole; Valle, Z. Conesa del Valle; M. Connors; M. Csanad; T. Csoergo; S. Dairaku; A. Datta; G. David; M. K. Dayananda; A. Denisov; A. Deshpande; E. J. Desmond; K. V. Dharmawardane; O. Dietzsch; A. Dion; M. Donadelli; O. Drapier; A. Drees; K. A. Drees; J. M. Durham; A. Durum; L. D'Orazio; Y. V. Efremenko; T. Engelmore; A. Enokizono; H. En'yo; S. Esumi; B. Fadem; D. E. Fields; M. Finger; M., Jr. Finger; F. Fleuret; S. L. Fokin; J. E. Frantz; A. Franz; A. D. Frawley; Y. Fukao; T. Fusayasu; C. Gal; I. Garishvili; F. Giordano; A. Glenn; X. Gong; M. Gonin; Y. Goto; Cassagnac, R. Granier de Cassagnac; N. Grau; S. V. Greene; M. Grosse Perdekamp; T. Gunji; L. Guo; H. -A. Gustafsson; J. S. Haggerty; K. I. Hahn; H. Hamagaki; J. Hamblen; R. Han; J. Hanks; C. Harper; K. Hashimoto; E. Haslum; R. Hayano; X. He; T. K. Hemmick; T. Hester; J. C. Hill; R. S. Hollis; W. Holzmann; K. Homma; B. Hong; T. Horaguchi; Y. Hori; D. Hornback; Song - Jeng Huang; T. Ichihara; R. Ichimiya; H. Iinuma; Y. Ikeda; K. Imai; Awadhesh Kumar Dubey; Mihael Makek; Alexander Milov; Deepali Sharma; Itzhak Tserruya

doi:https://doi.org/10.1103/PhysRevD.91.032001

Charged-Pion cross sections and double-helicity asymmetries in polarized p+p collisions at √s = 200 GeV

B. A. Cole, Valle, Z. Conesa del Valle, M. Connors, M. Csanad, T. Csoergo, S. Dairaku, A. Datta, G. David, M. K. Dayananda, A. Denisov, A. Deshpande, E. J. Desmond, K. V. Dharmawardane, O. Dietzsch, A. Dion, M. Donadelli, O. Drapier, A. Drees, K. A. Drees, J. M. DurhamA. Durum, L. D'Orazio, Y. V. Efremenko, T. Engelmore, A. Enokizono, H. En'yo, S. Esumi, B. Fadem, D. E. Fields, M. Finger, M., Jr. Finger, F. Fleuret, S. L. Fokin, J. E. Frantz, A. Franz, A. D. Frawley, Y. Fukao, T. Fusayasu, C. Gal, I. Garishvili, F. Giordano, A. Glenn, X. Gong, M. Gonin, Y. Goto, Cassagnac, R. Granier de Cassagnac, N. Grau, S. V. Greene, M. Grosse Perdekamp, T. Gunji, L. Guo, H. -A. Gustafsson, J. S. Haggerty, K. I. Hahn, H. Hamagaki, J. Hamblen, R. Han, J. Hanks, C. Harper, K. Hashimoto, E. Haslum, R. Hayano, X. He, T. K. Hemmick, T. Hester, J. C. Hill, R. S. Hollis, W. Holzmann, K. Homma, B. Hong, T. Horaguchi, Y. Hori, D. Hornback, Song - Jeng Huang, T. Ichihara, R. Ichimiya, H. Iinuma, Y. Ikeda, K. Imai, Awadhesh Kumar Dubey, Mihael Makek, Alexander Milov, Deepali Sharma, Itzhak Tserruya,

Weizmann Institute Of Science

Research output: Contribution to journal › Article › peer-review

Abstract

We present midrapidity charged-pion invariant cross sections, the ratio of the π^- to π⁺ cross sections and the charge-separated double-spin asymmetries in polarized p + p collisions at p√s = 200 GeV. While the cross section measurements are consistent within the errors of next-to-leading-order (NLO) perturbative quantum chromodynamics predictions (pQCD), the same calculations overestimate the ratio of the charged-pion cross sections. This discrepancy arises from the cancellation of the substantial systematic errors associated with the NLO-pQCD predictions in the ratio and highlights the constraints these data will place on flavor-dependent pion fragmentation functions. The charge-separated pion asymmetries presented here sample an x range of ~0.03-0.16 and provide unique information on the sign of the gluon-helicity distribution.

Original language	English
Article number	032001
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	91
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevD.91.032001
State	Published - 1 Jan 2015

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics
Physics and Astronomy (miscellaneous)

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https://doi.org/10.1103/PhysRevD.91.032001

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Cole, B. A., del Valle, V. Z. C., Connors, M., Csanad, M., Csoergo, T., Dairaku, S., Datta, A., David, G., Dayananda, M. K., Denisov, A., Deshpande, A., Desmond, E. J., Dharmawardane, K. V., Dietzsch, O., Dion, A., Donadelli, M., Drapier, O., Drees, A., Drees, K. A. (2015). Charged-Pion cross sections and double-helicity asymmetries in polarized p+p collisions at √s = 200 GeV. Physical Review D - Particles, Fields, Gravitation and Cosmology, 91(3), Article 032001. https://doi.org/10.1103/PhysRevD.91.032001

@article{9eb8f97e3e66421a81be49cdb9fa5460,

title = "Charged-Pion cross sections and double-helicity asymmetries in polarized p+p collisions at √s = 200 GeV",

abstract = "We present midrapidity charged-pion invariant cross sections, the ratio of the π- to π+ cross sections and the charge-separated double-spin asymmetries in polarized p + p collisions at p√s = 200 GeV. While the cross section measurements are consistent within the errors of next-to-leading-order (NLO) perturbative quantum chromodynamics predictions (pQCD), the same calculations overestimate the ratio of the charged-pion cross sections. This discrepancy arises from the cancellation of the substantial systematic errors associated with the NLO-pQCD predictions in the ratio and highlights the constraints these data will place on flavor-dependent pion fragmentation functions. The charge-separated pion asymmetries presented here sample an x range of ~0.03-0.16 and provide unique information on the sign of the gluon-helicity distribution.",

author = "Citron, {Zvi Hirsh} and Cole, {B. A.} and {del Valle}, {Valle, Z. Conesa} and M. Connors and M. Csanad and T. Csoergo and S. Dairaku and A. Datta and G. David and Dayananda, {M. K.} and A. Denisov and A. Deshpande and Desmond, {E. J.} and Dharmawardane, {K. V.} and O. Dietzsch and A. Dion and M. Donadelli and O. Drapier and A. Drees and Drees, {K. A.} and Durham, {J. M.} and A. Durum and L. D'Orazio and Efremenko, {Y. V.} and T. Engelmore and A. Enokizono and H. En'yo and S. Esumi and B. Fadem and Fields, {D. E.} and M. Finger and Finger, {M., Jr.} and F. Fleuret and Fokin, {S. L.} and Frantz, {J. E.} and A. Franz and Frawley, {A. D.} and Y. Fukao and T. Fusayasu and C. Gal and I. Garishvili and F. Giordano and A. Glenn and X. Gong and M. Gonin and Y. Goto and {de Cassagnac}, {Cassagnac, R. Granier} and N. Grau and Greene, {S. V.} and Perdekamp, {M. Grosse} and T. Gunji and L. Guo and Gustafsson, {H. -A.} and Haggerty, {J. S.} and Hahn, {K. I.} and H. Hamagaki and J. Hamblen and R. Han and J. Hanks and C. Harper and K. Hashimoto and E. Haslum and R. Hayano and X. He and Hemmick, {T. K.} and T. Hester and Hill, {J. C.} and Hollis, {R. S.} and W. Holzmann and K. Homma and B. Hong and T. Horaguchi and Y. Hori and D. Hornback and Huang, {Song - Jeng} and T. Ichihara and R. Ichimiya and H. Iinuma and Y. Ikeda and K. Imai and Dubey, {Awadhesh Kumar} and Mihael Makek and Alexander Milov and Deepali Sharma and Itzhak Tserruya and A. Adare and C. Aidala and Ajitanand, {N. N.} and Y. Akiba and R. Akimoto and H. Al-Ta{\textquoteright}ani and J. Alexander and Andrews, {K. R.} and K. Aoki and E. Appelt and Y. Aramaki and R. Armendariz and Aschenauer, {E. C.} and Atomssa, {E. T.} and Awes, {T. C.} and B. Azmoun and V. Babintsev and M. Bai and B. Bannier and Barish, {K. N.} and B. Bassalleck and Basye, {A. T.} and S. Bathe and V. Baublis and C. Baumann and A. Bazilevsky and R. Belmont and J. Ben-Benjamin and R. Bennett and Blau, {D. S.} and Bok, {J. S.} and K. Boyle and Brooks, {M. L.} and D. Broxmeyer and H. Buesching and V. Bumazhnov and G. Bunce and S. Butsyk and S. Campbell and P. Castera and Chen, {C. H.} and Chi, {C. Y.} and M. Chiu and Choi, {I. J.} and Choi, {J. B.} and Choudhury, {R. K.} and P. Christiansen",

note = "Publisher Copyright: {\textcopyright} 2015 American Physical Society.",

year = "2015",

month = jan,

day = "1",

doi = "https://doi.org/10.1103/PhysRevD.91.032001",

language = "English",

volume = "91",

journal = "Physical Review D - Particles, Fields, Gravitation and Cosmology",

issn = "1550-7998",

publisher = "American Institute of Physics",

number = "3",

}

Cole, BA, del Valle, VZC, Connors, M, Csanad, M, Csoergo, T, Dairaku, S, Datta, A, David, G, Dayananda, MK, Denisov, A, Deshpande, A, Desmond, EJ, Dharmawardane, KV, Dietzsch, O, Dion, A, Donadelli, M, Drapier, O, Drees, A, Drees, KA, Durham, JM, Durum, A, D'Orazio, L, Efremenko, YV, Engelmore, T, Enokizono, A, En'yo, H, Esumi, S, Fadem, B, Fields, DE, Finger, M, Finger, MJ, Fleuret, F, Fokin, SL, Frantz, JE, Franz, A, Frawley, AD, Fukao, Y, Fusayasu, T, Gal, C, Garishvili, I, Giordano, F, Glenn, A, Gong, X, Gonin, M, Goto, Y, de Cassagnac, CRG, Grau, N, Greene, SV, Perdekamp, MG, Gunji, T, Guo, L, Gustafsson, H-A, Haggerty, JS, Hahn, KI, Hamagaki, H, Hamblen, J, Han, R, Hanks, J, Harper, C, Hashimoto, K, Haslum, E, Hayano, R, He, X, Hemmick, TK, Hester, T, Hill, JC, Hollis, RS, Holzmann, W, Homma, K, Hong, B, Horaguchi, T, Hori, Y, Hornback, D, Huang, SJ, Ichihara, T, Ichimiya, R, Iinuma, H, Ikeda, Y, Imai, K, Dubey, AK, Makek, M, Milov, A, Sharma, D, Tserruya, I 2015, 'Charged-Pion cross sections and double-helicity asymmetries in polarized p+p collisions at √s = 200 GeV', Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 91, no. 3, 032001. https://doi.org/10.1103/PhysRevD.91.032001

TY - JOUR

T1 - Charged-Pion cross sections and double-helicity asymmetries in polarized p+p collisions at √s = 200 GeV

AU - Citron, Zvi Hirsh

AU - Cole, B. A.

AU - del Valle, Valle, Z. Conesa

AU - Connors, M.

AU - Csanad, M.

AU - Csoergo, T.

AU - Dairaku, S.

AU - Datta, A.

AU - David, G.

AU - Dayananda, M. K.

AU - Denisov, A.

AU - Deshpande, A.

AU - Desmond, E. J.

AU - Dharmawardane, K. V.

AU - Dietzsch, O.

AU - Dion, A.

AU - Donadelli, M.

AU - Drapier, O.

AU - Drees, A.

AU - Drees, K. A.

AU - Durham, J. M.

AU - Durum, A.

AU - D'Orazio, L.

AU - Efremenko, Y. V.

AU - Engelmore, T.

AU - Enokizono, A.

AU - En'yo, H.

AU - Esumi, S.

AU - Fadem, B.

AU - Fields, D. E.

AU - Finger, M.

AU - Finger, M., Jr.

AU - Fleuret, F.

AU - Fokin, S. L.

AU - Frantz, J. E.

AU - Franz, A.

AU - Frawley, A. D.

AU - Fukao, Y.

AU - Fusayasu, T.

AU - Gal, C.

AU - Garishvili, I.

AU - Giordano, F.

AU - Glenn, A.

AU - Gong, X.

AU - Gonin, M.

AU - Goto, Y.

AU - de Cassagnac, Cassagnac, R. Granier

AU - Grau, N.

AU - Greene, S. V.

AU - Perdekamp, M. Grosse

AU - Gunji, T.

AU - Guo, L.

AU - Gustafsson, H. -A.

AU - Haggerty, J. S.

AU - Hahn, K. I.

AU - Hamagaki, H.

AU - Hamblen, J.

AU - Han, R.

AU - Hanks, J.

AU - Harper, C.

AU - Hashimoto, K.

AU - Haslum, E.

AU - Hayano, R.

AU - He, X.

AU - Hemmick, T. K.

AU - Hester, T.

AU - Hill, J. C.

AU - Hollis, R. S.

AU - Holzmann, W.

AU - Homma, K.

AU - Hong, B.

AU - Horaguchi, T.

AU - Hori, Y.

AU - Hornback, D.

AU - Huang, Song - Jeng

AU - Ichihara, T.

AU - Ichimiya, R.

AU - Iinuma, H.

AU - Ikeda, Y.

AU - Imai, K.

AU - Dubey, Awadhesh Kumar

AU - Makek, Mihael

AU - Milov, Alexander

AU - Sharma, Deepali

AU - Tserruya, Itzhak

AU - Adare, A.

AU - Aidala, C.

AU - Ajitanand, N. N.

AU - Akiba, Y.

AU - Akimoto, R.

AU - Al-Ta’ani, H.

AU - Alexander, J.

AU - Andrews, K. R.

AU - Aoki, K.

AU - Appelt, E.

AU - Aramaki, Y.

AU - Armendariz, R.

AU - Aschenauer, E. C.

AU - Atomssa, E. T.

AU - Awes, T. C.

AU - Azmoun, B.

AU - Babintsev, V.

AU - Bai, M.

AU - Bannier, B.

AU - Barish, K. N.

AU - Bassalleck, B.

AU - Basye, A. T.

AU - Bathe, S.

AU - Baublis, V.

AU - Baumann, C.

AU - Bazilevsky, A.

AU - Belmont, R.

AU - Ben-Benjamin, J.

AU - Bennett, R.

AU - Blau, D. S.

AU - Bok, J. S.

AU - Boyle, K.

AU - Brooks, M. L.

AU - Broxmeyer, D.

AU - Buesching, H.

AU - Bumazhnov, V.

AU - Bunce, G.

AU - Butsyk, S.

AU - Campbell, S.

AU - Castera, P.

AU - Chen, C. H.

AU - Chi, C. Y.

AU - Chiu, M.

AU - Choi, I. J.

AU - Choi, J. B.

AU - Choudhury, R. K.

AU - Christiansen, P.

PY - 2015/1/1

Y1 - 2015/1/1

N2 - We present midrapidity charged-pion invariant cross sections, the ratio of the π- to π+ cross sections and the charge-separated double-spin asymmetries in polarized p + p collisions at p√s = 200 GeV. While the cross section measurements are consistent within the errors of next-to-leading-order (NLO) perturbative quantum chromodynamics predictions (pQCD), the same calculations overestimate the ratio of the charged-pion cross sections. This discrepancy arises from the cancellation of the substantial systematic errors associated with the NLO-pQCD predictions in the ratio and highlights the constraints these data will place on flavor-dependent pion fragmentation functions. The charge-separated pion asymmetries presented here sample an x range of ~0.03-0.16 and provide unique information on the sign of the gluon-helicity distribution.

AB - We present midrapidity charged-pion invariant cross sections, the ratio of the π- to π+ cross sections and the charge-separated double-spin asymmetries in polarized p + p collisions at p√s = 200 GeV. While the cross section measurements are consistent within the errors of next-to-leading-order (NLO) perturbative quantum chromodynamics predictions (pQCD), the same calculations overestimate the ratio of the charged-pion cross sections. This discrepancy arises from the cancellation of the substantial systematic errors associated with the NLO-pQCD predictions in the ratio and highlights the constraints these data will place on flavor-dependent pion fragmentation functions. The charge-separated pion asymmetries presented here sample an x range of ~0.03-0.16 and provide unique information on the sign of the gluon-helicity distribution.

UR - http://www.scopus.com/inward/record.url?scp=84922261375&partnerID=8YFLogxK

U2 - https://doi.org/10.1103/PhysRevD.91.032001

DO - https://doi.org/10.1103/PhysRevD.91.032001

M3 - Article

SN - 1550-7998

VL - 91

JO - Physical Review D - Particles, Fields, Gravitation and Cosmology

JF - Physical Review D - Particles, Fields, Gravitation and Cosmology

IS - 3

M1 - 032001

ER -

Charged-Pion cross sections and double-helicity asymmetries in polarized p+p collisions at √s = 200 GeV

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